Home / 7,381.98-11,073.02-2,187.90

Finding the Fourth Proportional to 7,381.98, 11,073.02 and 2,187.90

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Solution

The fourth proportional to 7,381.98, 11,073.02 and 2,187.90 is: 3,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.98 : 11,073.02 = 2,187.90 : x
  2. Step 2: Convert to fraction form
    7,381.98/11,073.02 = 2,187.90/x
  3. Step 3: Cross multiply
    7,381.98x = 11,073.02 × 2,187.90
  4. Step 4: Simplify right side
    7,381.98x = 24,226,660.46
  5. Step 5: Solve for x
    x = 24,226,660.46/7,381.98
  6. Step 6: Final answer
    x = 3,281.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.